2421214121243 has 8 divisors (see below), whose sum is σ = 2473729324608. Its totient is φ = 2368740585024.

The previous prime is 2421214121239. The next prime is 2421214121257. The reversal of 2421214121243 is 3421214121242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2421214121243 - 2² = 2421214121239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2421214121203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10299296 + ... + 10531757.

It is an arithmetic number, because the mean of its divisors is an integer number (309216165576).

Almost surely, 2^{2421214121243} is an apocalyptic number.

2421214121243 is a deficient number, since it is larger than the sum of its proper divisors (52515203365).

2421214121243 is a wasteful number, since it uses less digits than its factorization.

2421214121243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20833573.

The product of its digits is 6144, while the sum is 29.

Adding to 2421214121243 its reverse (3421214121242), we get a palindrome (5842428242485).

Subtracting 2421214121243 from its reverse (3421214121242), we obtain a palindrome (999999999999).

The spelling of 2421214121243 in words is "two trillion, four hundred twenty-one billion, two hundred fourteen million, one hundred twenty-one thousand, two hundred forty-three".